Django不调用模型清理方法

我找到了覆盖方法的解决方案：

class CommonMeasurement(models.Model):    timestamp = models.DateTimeField()    value = models.FloatField()    run = models.ForeignKey(Run)    objects = models.Manager()    analyzes = managers.MeasureStatManager()    def save(self, **kwargs):        self.clean()        return super(CommonMeasurement, self).save(**kwargs)    def clean(self):        super(CommonMeasurement, self).clean()        print 'here we go'        if self.timestamp < self.run.timestamp_start or self.timestamp > self.run.timestamp_end: raise django_excetions.ValidationError('Measurement is outside the run')

但是我不确定这是否是一个好决定。